Our research focus is on trauma related disorders, like PTSD and treatment options (e.g. adjunctive breathing biofeedback to Cognitive Behavioral Therapy; Cognitive Behavioral Therapy versus paroxetine). Furthermore, we aim to investigate the influence of treatment on neuroendocrine (e.g. oxytocin or cortisol), psychophysiological (e.g. Heart Rate Variability) and neuropsychological (e.g.e executive functioning and verbal memory) parameters in PTSD.